Company lists · Data refreshed September 2026

Top 25 Customer data companies worldwide

Name: Customer data companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 11,110 companies tracked

RevenueBase identified 11,110 company matches for customer data companies worldwide as of September 2026 and tracks 204,712 professional contacts across them, including 66,027 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for customer data companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026. Country and city lists for customer data companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

11,110Companies

204,712Contacts tracked

66,027Verified emails

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The 25 largest customer data companies worldwide

Ranked by team size

Top 25 of 11,110 company matches for customer data companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kantar	Exact match	London, United KingdomHQ recorded Sep 21, 2026	10001+	15,564 contacts →
	Exact match “Kantar is the world’s leading marketing data and analytics business.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Epsilon	Exact match	Irving, TX, United StatesHQ recorded Sep 21, 2026	5,001-10,000	9,953 contacts →
	Exact match “Epsilon is a global leader in data and identity with deep expertise in digital media, clean rooms, customer data platforms, loyalty and marketing services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Circana	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	5,001-10,000	5,571 contacts →
	Exact match “At Circana, we measure and accelerate demand.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Zoominfo	Exact match	Vancouver, WA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	4,029 contacts →
	Exact match “ZoomInfo (NASDAQ: GTM) is the go-to-market platform that helps businesses find, acquire and grow their customers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Acxiom	Exact match	Conway, AR, United StatesHQ recorded Sep 21, 2026	1,001-5,000	3,241 contacts →
	Exact match “Acxiom puts data to work, solving complex challenges for the world’s leading brands and agencies.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Dunnhumby	Exact match	Brook Green, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,857 contacts →
	Exact match “dunnhumby helps businesses grow through faster, better decision making, as the essential intelligence layer connecting the world’s leading retailers and brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Klaviyo	Exact match	Boston, MA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,789 contacts →
	Exact match “Klaviyo (NYSE: KVYO) is the autonomous B2C CRM.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	MRM	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,627 contacts →
	Exact match “MRM is a modern relationship marketing agency that builds enduring brand relationships.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	BRAZE	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,142 contacts →
	Exact match “Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	IRI	Exact match	Chicago, IL, United StatesHQ recorded Sep 21, 2026	5,001-10,000	1,700 contacts →
	Exact match “IRI is a leading provider of big data, predictive analytics and forward-looking insights that help CPG, OTC healthcare, retailers and media companies to grow their businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Caci LTD	Exact match	London, United KingdomHQ recorded Sep 21, 2026	1,001-5,000	1,663 contacts →
	Exact match “CACI offers an unrivalled range of data, marketing and IT solutions to a wide range of industries across both the public and private sectors.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Infocepts	Exact match	Washington Dc, VA, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,485 contacts →
	Exact match “Infocepts enables improved business results through more effective use of data, AI & user-friendly analytics.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Hearts & Science	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,359 contacts →
	Exact match “Hearts & Science, an Omnicom Media Group agency, transforms data signals into meaningful connections between brands and consumers that drive exponential growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Similarweb	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,351 contacts →
	Exact match “We power businesses with the best digital data.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Annalect	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	5,001-10,000	1,327 contacts →
	Exact match “Over a decade ago, Omnicom created Annalect to reimagine the future of marketing, at the crossroads of data, tech, analytics, and AI.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Verticurl A WPP Company	Exact match	SingaporeHQ recorded Sep 21, 2026	1,001-5,000	1,256 contacts →
	Exact match “Verticurl, a division of Ogilvy, was established in 2006 with the mission to be the world’s leading marketing technology services agency for multinational organizations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	J.D. Power	Exact match	Troy, MI, United StatesHQ recorded Sep 21, 2026	501-1,000	1,200 contacts →
	Exact match “J.D.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Dialog Direct	Exact match	Highland Park, MI, United StatesHQ recorded Sep 21, 2026	10001+	1,138 contacts →
	Exact match “Dialog Direct helps brands manage and personalize their multichannel, multi-touch customer journeys using data-driven marketing and customer engagement solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Data Axle	Exact match	Dallas, TX, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,088 contacts →
	Exact match “Data Axle helps clients create a foundation of clean data, find new leads, develop winning strategies, design beautiful campaigns, and can handle all day-to-day execution needs” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Demandscience	Exact match	Boston, United StatesHQ recorded Sep 21, 2026	1,001-5,000	1,087 contacts →
	Exact match “With proprietary data and omni-channel activation like events, content, programmatic and chat, we cut through the noise to reach entire buyer groups, driving engagement and impact…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Insider	Exact match	Istanbul, TürkiyeHQ recorded Sep 21, 2026	1,001-5,000	1,036 contacts →
	Exact match “Insider-one platform for individualized, cross-channel experiences-enables enterprise marketers to connect customer data across channels and systems, predict their future behavior…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Mresult	Exact match	Mystic, United StatesHQ recorded Sep 21, 2026	501-1,000	929 contacts →
	Exact match “About MResult MResult is a leading data & analytics intelligence technology solutions provider to companies that value insights from information as a competitive advantage.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	SEM	Exact match	Sariyer, TürkiyeHQ recorded Sep 21, 2026	n/a	883 contacts →
	Exact match “SEM is a global new generation consumer marketing and technologies brand where we combine growth consultancy, advanced analytics, digital marketing and technology services under…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Emarsys	Exact match	Vienna, GermanyHQ recorded Sep 21, 2026	501-1,000	831 contacts →
	Exact match “SAP Engagement Cloud (formerly SAP Emarsys) helps organizations power unique engagement by connecting real-time customer insights with the operational signals that run the…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Onemagnify	Exact match	Detroit, MI, United StatesHQ recorded Sep 21, 2026	501-1,000	824 contacts →
	Exact match “At OneMagnify, we help transformational brands turn insight into action.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “customer data companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 11,110 customer data companies worldwide

See the full list, filter by size, metro and specialty, and access 66,027 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Customer data companies worldwide at a glance

As of Sep 21, 2026

32.3%Verified-email coverage

18.4Average contacts per company

1-10Median size (employees)

3.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

6,339

11-50

3,342

51-200

1,025

201-500

236

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for customer data companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “customer data companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 66,027 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Customer data companies by location

66 lists · largest first

Every Customer data companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “customer data companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many customer data companies are there worldwide?

RevenueBase identified 11,110 company matches for customer data companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kantar tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most customer data companies?

The United States leads with 3,141 companies, followed by India (879) and the United Kingdom (757). Every customer data companies list by country and city is linked on this page.

Which city has the most customer data companies?

London leads with 347 company records, followed by New York (204) and Sao Paulo (197).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 66,027 professional contacts with verified work emails tracked across these 11,110 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.